drm/amdgpu: update pt shadow while updating pt V2

V2:
move shadow parameter to amdgpu_pte_update_params.

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: minutemaidpark@hotmail.com
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 1eae307..d2824d9 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -65,6 +65,8 @@ struct amdgpu_pte_update_params {
        void (*func)(struct amdgpu_pte_update_params *params, uint64_t pe,
                     uint64_t addr, unsigned count, uint32_t incr,
                     uint32_t flags);
+       /* indicate update pt or its shadow */
+       bool shadow;
 };
 
 /**
@@ -761,7 +763,11 @@ static void amdgpu_vm_update_ptes(struct amdgpu_pte_update_params *params,
        addr = start;
        pt_idx = addr >> amdgpu_vm_block_size;
        pt = vm->page_tables[pt_idx].entry.robj;
-
+       if (params->shadow) {
+               if (!pt->shadow)
+                       return;
+               pt = vm->page_tables[pt_idx].entry.robj->shadow;
+       }
        if ((addr & ~mask) == (end & ~mask))
                nptes = end - addr;
        else
@@ -780,6 +786,11 @@ static void amdgpu_vm_update_ptes(struct amdgpu_pte_update_params *params,
        while (addr < end) {
                pt_idx = addr >> amdgpu_vm_block_size;
                pt = vm->page_tables[pt_idx].entry.robj;
+               if (params->shadow) {
+                       if (!pt->shadow)
+                               return;
+                       pt = vm->page_tables[pt_idx].entry.robj->shadow;
+               }
 
                if ((addr & ~mask) == (end & ~mask))
                        nptes = end - addr;
@@ -1004,6 +1015,9 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
        if (r)
                goto error_free;
 
+       params.shadow = true;
+       amdgpu_vm_frag_ptes(&params, vm, start, last + 1, addr, flags);
+       params.shadow = false;
        amdgpu_vm_frag_ptes(&params, vm, start, last + 1, addr, flags);
 
        amdgpu_ring_pad_ib(ring, params.ib);